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In organic field‐effect transistors, the structure of the constituent molecules can be tailored to minimize the disorder experienced by charge carriers. Experiments on two perylene derivatives show that disorder can be suppressed by attaching longer core substituents – thereby reducing potential fluctuations in the transistor channel and increasing the mobility in the activated regime – without altering...
The Hall effect and an increase of field‐effect mobility with decreasing temperature is observerd in n‐channel single‐crystal organic field‐effect transistors (OFETs). A quantitative analysis of these findings, together with results on different p‐channel transistors, indicate the importance of the semiconductor molecular polarizability and the structure of the charge transport layers in the crystal...
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